Table 2.
Characteristics of potassium based toothpastes excluded studies (reasons).
| No. | Study | Reason for exclusion |
|---|---|---|
| 1 | Ajcharanukul et al. [46] | KCl solution was used |
| 2 | Andreana et al. [47] | Abstract only |
| 3 | Aris et al. [48] | Abstract only |
| 4 | Ayad et al. [49] | Different fluoride concentrations and compounds in the test and comparison toothpastes |
| 5 | Ayad et al. [50] | Different fluoride concentrations and compounds in the test and comparison toothpastes |
| 6 | Bohen and Lafont [51] | In-office treatment |
| 7 | Browning et al. [52] | Study on the safety and efficacy of a night guard bleaching agent containing NaF and KNO3 |
| 8 | Charig et al. [53] | Abstract only |
| 9 | Conforti et al. [54] | Study duration: 14 days (2 weeks) Different fluoride concentrations and compounds in the test and comparison toothpastes |
| 10 | Cooley and Sandoval [55] | Potassium oxalate solution was used |
| 11 | Docimo et al. [56] | Different fluoride concentrations and compounds in the test and comparison toothpastes |
| 12 | Frechoso et al. [57] | Study duration was 14 days (2 weeks) |
| 13 | Gillam et al. [58] | KNO3 mouthwash was used |
| 14 | Gillam et al. [59] | Different fluoride concentrations and compounds in the test and comparison toothpastes |
| 15 | Goncalves et al. [60] | Abstract only |
| 16 | Hall et al. [61] | Abstract only |
| 17 | Van Haywood et al. [62] | Study on the efficacy of KNO3—F gel to reduce bleaching sensitivity |
| 18 | Haywood et al. [63] | Study on the efficacy of KNO3 toothpaste to reduce bleaching sensitivity |
| 19 | Hodosh [64] | Review |
| 20 | Hodosh [65] | Not an RCT |
| 21 | Jalalian et al. [66] | Study on the efficacy of KNO3 in reduction of hypersensitivity in teeth with full-crown preparations |
| 22 | Kawamata et al. [67] | Abstract only |
| 23 | Lecointre et al. [68] | Different fluoride concentrations and compounds in the test and comparison toothpastes. Study duration: 4 weeks |
| 24 | Manochehr-pour et al. [69] | Incomplete data |
| 25 | McCormack and Davies. [70] | Review |
| 26 | Mordan et al. [71] | Abstract only |
| 27 | Morris et al. [72] | Abstract only |
| 28 | Orchardson and Gillam [3] | Review |
| 29 | Pamir et al. [73] | In-office treatment |
| 30 | Peacock and Orchardson [74] | Animal (rat) study for the effect of (K) ions on action potential conduction in A- and C-fibres |
| 31 | Peacock and Orchardson [75] | Animal (rat) study to assess the ability of some organic (K) salts to block action potential conduction |
| 32 | Pereira et al. [76] | In vitro study |
| 33 | Pillon et al. [77] | Study on the effect of a single application of 3% potassium oxalate gel immediately after subgingival scaling and root planning on DH |
| 34 | Pol et al. [78] | Review |
| 35 | Poulsen et al. [9] | Review |
| 36 | Prasad et al. [79] | Different fluoride concentrations and compounds in the test and comparison toothpastes |
| 37 | Reinhart et al. [80] | A pilot study |
| 38 | Salian et al. [81] | Study duration: 4 weeks |
| 39 | Salvato et al. [82] | Different fluoride concentrations and compounds in the test and comparison toothpastes |
| 40 | Sharma [83]* | No data available at 6 to 8 weeks |
| 41 | Sharma et al. [84] | No data available at 6 to 8 weeks |
| 42 | Silverman [85] | Test and control toothpastes were not clearly detailed |
| 43 | Silverman et al. [86] | Incomplete data |
| 44 | Sowinski et al. [87] | No potassium-free comparison group; different fluoride concentrations and compounds in the test and comparison groups |
| 45 | Sowinski et al. [88] | Different fluoride concentrations and compounds in the test and comparison toothpastes |
| 46 | Stead et al. [89] | Review (mathematical model) |
| 47 | Tarbet et al. [90] | Not clear if the study was randomized. Study duration: 4 weeks |
| 48 | Tarbet et al. [91] | Study on the pulpal effects of brushing with a (5% KNO3) paste used for desensitization |
| 49 | Touyz and Stern [92] | KNO3 solution was used to reduce DH after periodontal surgery |
| 50 | Wang et al. [93] | Abstract only |
| 51 | Wara-aswapati et al. [94] | No data available at 6 to 8 weeks |
| 52 | Yates et al. [95] | Potassium citrate-containing mouth rinse was used |
| 53 | Yates et al. [96] | No potassium-free comparison group |
| 54 | Orsini et al. [97] | Different fluoride concentrations and compounds in the test and comparison toothpastes |
| 55 | Pradeep and Sharma [98] | Different compounds in the test and comparison toothpastes. Calcium sodium phosphosilicate was evaluated against a potassium nitrate and placebo with no calcium sodium phosphosilicate |
*http://www.oralscience.ca/. A randomized parallel group clinical study accessed 2010.